package com.hmall.common.interceptors;

import cn.hutool.core.util.StrUtil;
import com.hmall.common.utils.UserContext;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author 宛远鸿
 * @version 1.0
 */
public class UserInfoInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    //1.登陆获取用户信息
        String userInfo = request.getHeader("user-info");
        //2.判断是否获取了用户，如果有，存如Threadlocal
        if (StrUtil.isNotBlank(userInfo)) {
            UserContext.setUser(Long.valueOf(userInfo));
        }
    //3.放行
        return true;

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    UserContext.removeUser();
    }
}
